Ash-dust remover



Jam. 3, 11923..

G, A, WELCH, AsH DusT REMOVER. FILED MAR, 11, 1921,

ATORNEY nil.

i scones ai vviarom or SEATTLE, wasnrite'roim,

Asanner magma App licatioii -filed March 11, 1921. Serial No. 4.51am

ToaZZ whom it'kmcig comm: p a

Be it known that I GEORGE A. VVnLoHQa citizen of the United States, residing at Seattle, in the county ofKing'and State of 5 vvashington, have invented certain new and useful Improvements in Ash-Dust Removers, of which the, following is ZtSPBClilCiltlOIl.

This inventionrelates to ashdust oollec tors and conveyors; the object of myinvention is the provislon of a device of. this char? acter attached to the smoke, pipe of aheat ing-furnace and which is adapted to be applied to thetop of an ash-canfor removing the dust therefrom by, the natural draft obtaining inthe smoke pipe.

MA further-ob'ect of the lni ention is the provision 'in a dust-conveyor of means rendered operable through the. medium of. the hood to regulate the conveyor passage so as not to interfere with the draftin the p associated smoke pipe 1 The invention consists in the @QYGTQOD- struction, adaptation and combination of a parts as willwbe .hereinafterdescribed and claimed. a e W In the accompanying drawings- Figure 1 is a view, partly in front eleva tion and partly in vertical section, of devices embodying my invention, shown applied Fig. 2 is a front elevation illustrating the attachmentfor an ash-can and the pipe connectiontherefor.

In said drawings, the reference numeral 5 designates a boiler or furnace such, for

example, as employed for domesticheating and is provided with a smoke pipe 6 leading to a chimney or stack. 7 represents a cylindrical ash-can of the type conventionally known as a garbageban which, as shown,

is supported upon a wheeled vehicle 8 to render said can conveniently portable.

According to the present invention, for

the can 7 I providea truncated conical cover or hood 9. Adjacent to one of its sides said hood has extending therethrough a chute 10 formed and arranged substantially, as shown.

Adjacent to the side opposite to thechute 10, said hood is provided with. an opening 11 into a pipe 12 which is rigid with and extendsupwardly from said hood. i

The pipe 12 is sleeved within thelower end of a pipe 13Iwhichis rigidly connected by an elbow lltothe smoke 551 The pipes 12 and 13 consti pipe 6.

ute members of an ashdust'conveyor and by being telescopically connected afford vertical movement tosaid hood for removably seating the same upon the ash-can. v p i A rod 15 extendsd'ametrieally through the pipe 12. into verticalguide slots 16 projvidediii the pipe 13 to accommodate the verticaill movement of the hood.

By turning. the hood toicause the ends of the rod litolodge in notches, such as 16 at the upper ends of the respective slots saidhood is retained in its elevated position forthe removal of anash-can or during the absence of the same from below the hood.

-17 represents ,aua per provided in the I pipe13 to close the latter when the hood is disconnected from a can;

As shown, an arm 18 provided on an end of the damper spindle is pivotally connectthrough an aperture in one of the endsof therod l5. p a

. The lower portion of tire link 19 is screw threaded to receive" nuts20"and 21wl1ich are respectively disposed above-and below the rod 15. p

A helical spring 22 provided'on the link between the nut 21 and said rod affords limited downward motion to thehood after the damper has been arrested in its full ed to an end of a link 19 which extends open position by the arm 18 thereof encountering a stop 23 provided on the pipe By means of the damper controlling devices above described, it will be apparent that the damper is closed and opened re spectively by raising and lowering the hood. The spring yielding enables the hood to be moved to varying distances to suit cans of various diameters and heights,

.A reinforcing band or collar 25 is advantageously provided aboututhe lower end of pipe member 13. i i

The operation will beunderstood from the foregoing description. When the hood s engaged upon an ash can, the damper 1s open and the draft occurring in the smoke .pipe members 12 and 13 to draw ash dust 6will create suction through the pipe into said smoke pipe when ashes are shoveled or dumped through the chute 10 into the ash-can.

What I claim, is, 1. In apparatus of the character described, the combination with an ash-recep tacle and a removable cover therefor provided with an ash receiving chute, of a dustconveying pipe formed of two telescopically arranged members, one of said members'being rigid with saidcover, means connecting said pipe members for relative longitudinal and rotary movements, said means serving to releasably support said cover at adistance above the height of said receptacle, a damper provided in said pipe, means rendered operative by the lowering of said cover onto and from said' receptacle to re spectively' effect the opening and closing movements-of-said damper, and means associated with saiddamper for resiliently supporting said cover when the damper is in an open position.- p

2. In apparatus of the character de scribed, the combination with an ash receptacle, or a vertically arranged dust conveying pipe comprising two members telescopically connected together, a cover for an ashreeeptacle suspended by the lower of said members, a damper in the upper of said members, means operatively connecting the lower of said membersv with said damper whereby the latter'is' moved into open and closed position in the downward and upward movements respectively of said cover, saidmeanscomprising a cross bar within the lower of said members, one end of which projects through aslot in the upper of saidmembers, and a connecting d. b rrei ing d 9 S d ro bar and a link member operatively associated with said damper.

3. An apparatus of the character described, wherein the smoke outlet pipe of a furnace has a depending pipe section carried thereby, an ash can hood resiliently supported on the lower end of the pipe section and permanently connected thereto.

4. An apparatus of the character dcseribed, wherein the smoke outlet pipe of a furnace has a depending pipe section carried thereby, an ash can hood resiliently supported on the lower end of the pipe sec tion and permanently connected thereto. and a filling spout projecting upwardly from said hood.

5. An apparatus of the character described, wherein the smoke outlet pipe of a furnace has a depending pipe section carried thereby, an ash can hood resiliently supported on the lower end of the pipe section and permanently connected thereto. and a damper valve pivotally mounted in the depending pipe section and associated with the resilient support for said hood adapted for automatically closing when the hood is lowered.

Signed at Seattle, Washington, this 25th day of February 1921.

GEORGE A. VVELCI-I. 

